Here are my latest results pushing my own cast bullets harder than most would dare pushing jacketed bullets in a 327 Federal,, OH thats right, you can't find jacketed pistol bullets for any 32 this heave!
Yes another modern cartridge the 327 Federal, along side the old decrepit 357 mag. 170 grain cast HP as I cast it, in the 357, at a lowly 1455 fps,, and the 132grain as I cast penta HP in the 327 federal at a mild 1500+ fps, over 15 grains heavier than any jacketed bullet available for this caliber.
Then after tweaking the 327 load at 50 yards nearly clipping along at 1550 fps with accuracy rivaling some rifles, again with a bullet weight that is not even available commercially in a jacketed form.
I caution anyone that this is with a surplus bulk Magnum pistol powder that is not commercially available as a canister powder! It is an out of the box, 6" HB 327 GP-100. The Bisley is a custom sixgun and no way do I suggest these loads are safe in any other revolver!